Extractor Fan re circulation


C

Craigy

Hi group,

Just a quik question,

Ive installed a Baumatic cooker hood complete with ducting to an
outside wll. The hood is the min 75 cm above the cooker. My trouble is
that the steam ad fumes dont seem to get caught by the hood. The hood
was nearly 300 pounds so im asuming its a fairly good one, the ducting
is about 2 meters ( not too long ?). reading the literature it says
there is a recirc mode and an extratct mode,are these the same exept
the fume are vented in extract mode ?. The reason i have dubts is that
when the fan is running some air is pumped out to the ducting , while
some air is expelled out of the side of the fan motor. I know that
with my shower fan all air it takes in is pushed out. Sorry if im
rambling an ideas on this one guys and gals ???
 
D

Dave Liquorice

The reason i have dubts is that when the fan is running some air is
pumped out to the ducting , while some air is expelled out of the
side of the fan motor.
Is the damper that selects recirc/extract in the correct place, not
set midway between the two?

Is the air coming from the motor also air that is drawn in through the
filter or simply cooling air for the motor only? Even so it seems a
bit silly to dump the warm air into the kitchen when you could vent
it.
 
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G

Geosolar Heating

Hi group,

Just a quik question,
Light a smoke pellet on top of the hob and turn on the fan. You'll
soon see how effective the extractor is and if the smoke is being
recirculated or pushed outside.

You can buy smoke pellets from a plumbers merchants.
 

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